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Animals in Action ★★★ Eureka! ★★★ Freaky Frogs ★★★ The Bridge ★★★ Alphabet Blocks ★★★ Table for Two ★★★To Know or not To Know ★★★A Quiz ★★★John & Julia ★★★Square Puzzle ★★★Coin Weighing ★★★The Masters Plaza ★★★Stacking Coins ★★★3 Heads & 5 Hats ★★★Zebra ★★★Cube Creatures ★★★★ Colorful Dwarfs ★★★★ Pirate Treasure ★★★★ Bizarre Boxes ★★★★ The Truel ★★★★ Fourteen Fifteen ★★★★Coconut Chaos ★★★★Numbers and Dots ★★★★You have an unlimited number of coins with a diameter d and you stack them. The goal is to let the topmost coin stick out as far as possible.
The question: What is the maximal distance between the center of the topmost coin and the center of the lowermost coin?
The answer: Click here!
